Crude oil

S2 ChemistryMaterials from the Earth

Learning outcomes Success criteriaKnow how crude oil is extracted.

Describe how crude oil is extracted from the ground.

Know what crude oil is composed of.

State what crude oil is mainly composed of.

State what is meant by a hydrocarbon.

Learning outcomes Success criteriaKnow how crude oil is extracted.

Describe how crude oil is extracted from the ground.

Know what crude oil is composed of.

State what crude oil is mainly composed of.

State what is meant by a hydrocarbon.

Fractional Distillation

S2 ChemistryMaterials from the Earth

Learning outcomes Success criteriaUnderstand how crude oil is separated into useful substances.

State the name of the process used to separate crude oil.

Explain why crude oil can be separated in this way.

State what is meant by a fraction.

Learning outcomes Success criteriaUnderstand how crude oil is separated into useful substances.

State the name of the process used to separate crude oil.

Explain why crude oil can be separated in this way.

State what is meant by a fraction.

Learning outcomes Success criteriaKnow the trends in properties of crude oil fractions.

State what is meant by flammability.

State what is meant by viscosity.

Describe how each of the following varies for fractions of different molecular size:

–boiling point–evaporation–flammability–viscosity

Learning outcomes Success criteriaKnow the trends in properties of crude oil fractions.

State what is meant by flammability.

State what is meant by viscosity.

Describe how each of the following varies for fractions of different molecular size:

–boiling point–evaporation–flammability–viscosity

Learning outcomes Success criteriaKnow some uses for crude oil fractions.

State examples of how the products of fractional distillation of crude oil can be used.

Learning outcomes Success criteriaKnow some uses for crude oil fractions.

State examples of how the products of fractional distillation of crude oil can be used.

Separating techniques

• There are many separating techniques in chemistry.

• Examples: filtration, evaporation, chromatography…

• Distillation can be used to separate two liquids.

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Increasing viscosity

Increasing boiling point

Decreasing flammability

Decreasing volatility

Fraction: “a group of compounds with boiling points within a given range”.